package application;

public class AppBootstrap {
    public static void main(String[] args) {
        System.out.println("Hello world!");

        TelephoneNumberWrapper wrapper = new TelephoneNumberWrapper("021-88888888");

        System.out.println(wrapper.findAreaCode());

        wrapper.setText("01077777777");
        System.out.println(wrapper.findAreaCode());
    }

}
